Enclosure for pick up truck bed



FIG. 1 is a perspective view of an enclosure for a pick up truck bedshowing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for an enclosure for pick up truck bed, as shownand described.